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SRAM DUB English/BSA 68/73mm Bottom Bracket

• DUB technology for superior durability and stiffness - SRAM's DUB spindle interface features a uniform 28.99mm diameter that simplifies compatibility while delivering exceptional stiffness and strength for efficient power transfer

• English/BSA threaded compatibility - Designed specifically for standard English/BSA threaded bottom bracket shells (68mm and 73mm widths), ensuring secure installation and compatibility with the vast majority of modern frames

• Sealed cartridge bearing design - High-quality sealed bearings protect against water, mud, and contaminants, providing smooth rotation and extended service life even in harsh riding conditions

• Lightweight construction without compromising strength - Engineered to minimize weight while maintaining the structural integrity needed to withstand the demands of aggressive riding and high torque loads

• Simple installation and maintenance - Straightforward threaded design allows for easy installation with standard bottom bracket tools, and the sealed cartridge system requires minimal maintenance for long-lasting performance

Brand: Sram

Type: DUB English

Availability: In stock Out of stock

Delivery: 2-3 working days

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Regular price: £32.89
Sale price: £32.89
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Description

SINGULAR FOCUS. BETTER SOLUTION.

The new SRAM DUB™ bottom bracket series has a simple job—connect your crankarms and protect the smooth, long-lasting application of power to your drivetrain. To allow that singular focus, we’ve engineered the DUB™ spindle to be the one true unifying component. One oversized spindle to work across every bottom bracket standard. For better crankarm compatibility. For better protection from the elements. For longer-lasting performance. To be stronger, smoother, simpler. Now, back to the ride.

THINGS TO REMEMBER

• One oversized spindle to work across every bottom bracket standard
• Gutter Seal Technology™ drastically improves sealing against the elements
• Significantly lighter than GXP® system

FEATURES AND BENEFITS

• Gutter Seal Technology™
• Sealed cartridge bearings
• ISO 4210 compliant.

SPECIFICATIONS

BB-frame interface English/BSA 68/73mm
Crank-BB interface DUB
Bearing type Standard
Spindle diameter DUB
Cup material Aluminium

Supplied with 2, 3 & 4.5mm Spacers

Shipping & Returns

Our Promise

All orders are carefully prepared and dispatched within 1-2 business days. Once your package is on its way, you will receive a confirmation email with a tracking number so you can follow its journey.

Same‑Day Dispatch

Orders placed before 2pm are dispatched the same day via Royal Mail Tracked 24.

If there are any stock issues, we will contact you by phone or email to update you and reorganise delivery.

Shipping Costs

• Orders over £50 qualify for free shipping.

• Orders under £50 have a flat delivery fee of £3.00.

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For urgent orders, you can upgrade to Royal Mail Special Delivery Guaranteed by 1pm.

This upgrade is available at checkout for orders placed before 2pm.

FAQ

What is DUB technology and why does it matter? A: DUB (Durable Unified Bottom Bracket) is SRAM's spindle interface standard featuring a uniform 28.99mm diameter. This larger, consistent spindle diameter provides superior stiffness and durability compared to traditional designs, improves power transfer, and simplifies compatibility across different frame standards while reducing weight.

Q: How do I know if this bottom bracket fits my frame? A: This bottom bracket is designed for frames with English/BSA threaded bottom bracket shells. Check your frame specifications—if it has a 68mm or 73mm wide threaded shell with 1.37" x 24 TPI threading (the most common standard), this will fit. It's compatible with SRAM DUB cranksets including GX, X01, and XX1 Eagle models.

Q: What's the difference between 68mm and 73mm shell widths? A: The shell width refers to the width of your frame's bottom bracket housing. Road and most mountain bike frames use 68mm, while some mountain bikes (particularly older designs) use 73mm. This DUB bottom bracket accommodates both widths using the appropriate spacers included with the unit.

Q: How long will this bottom bracket last before needing replacement? A: Service life depends on riding conditions and maintenance, but sealed cartridge bearings typically last 3,000-8,000 miles under normal conditions. Riders in wet, muddy environments may see shorter life (2,000-4,000 miles), while those in dry conditions with regular cleaning can exceed 8,000 miles. Warning signs include rough rotation, play, or creaking noises.

Q: What tools do I need to install this bottom bracket? A: You'll need a bottom bracket tool compatible with SRAM DUB (typically a 16-notch tool), a torque wrench for proper installation (25-35 Nm is standard), and grease for the threads. If you're unfamiliar with bottom bracket installation, we recommend having it installed by a qualified bike mechanic to ensure proper torque and alignment.